Yea, I did get a code for engine misfire, but I wonder if that was brought on by the rich mixture.

 

Folks,
Just to bring you all up to speed, in case you didn't read my other post. I had it towed to a repair shop and the problem was the #1 fuel injector was stuck open and made the engine go into a hydro-lock condition.
O2 sensors, Opti were all fine.